Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 01:39:36 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: diodes  (Read 1789 times)

0 Members and 1 Guest are viewing this topic.

Offline dsones

  • Level 1
  • *
  • Posts: 16
  • I love Tube amps
Hoffman Amps Forum image
diodes
« on: July 27, 2024, 11:26:22 am »
I building a princeton reverb II.  The schematic shows 1Ax800v diodes.  I can't find these anywhere.  Is the 1N4007 diode equivalent?  What diodes should I use?  I have the fender parts list for the amp but the fender numbers don't seem to be connected to anything current.  Thanks

Offline Dave

  • Level 3
  • ***
  • Posts: 595
Hoffman Amps Forum image
Re: diodes
« Reply #1 on: July 27, 2024, 11:33:19 am »
Not equivalent, but will work just fine.


Dave

Offline dwinstonwood

  • Level 3
  • ***
  • Posts: 1217
  • I love Tube amps
Hoffman Amps Forum image
Re: diodes
« Reply #2 on: July 27, 2024, 11:47:36 am »
I've read that the UF4007's generate less switching noise, but I've never tried them. I've always used 1N4007's in the few 6V6 amps I've built, because Hoffman and others carry them.

Offline Esquirefreak

  • Level 2
  • **
  • Posts: 390
  • I love Tube amps
Hoffman Amps Forum image
Re: diodes
« Reply #3 on: July 27, 2024, 01:24:22 pm »
I've been using UF4007 and UF5408 for my last builds. Though I haven't noticed much difference between UF and 1N diodes.

/Max
« Last Edit: July 27, 2024, 01:26:25 pm by Esquirefreak »

Offline Willabe

  • Global Moderator
  • Level 5
  • ******
  • Posts: 10524
Hoffman Amps Forum image
Re: diodes
« Reply #4 on: July 27, 2024, 01:28:08 pm »
I switched over years back to the UF because their price has dropped down to ~ the same as 1N diodes.

If you get any less noise, great. So why not use them?   :dontknow:


 


Choose a link from the
Hoffman Amplifiers parts catalog
Mobile Device
Catalog Link
Yard Sale
Discontinued
Misc. Hardware
What's New Board Building
 Parts
Amp trim
Handles
Lamps
Diodes
Hoffman Turret
 Boards
Channel
Switching
Resistors Fender Eyelet
 Boards
Screws/Nuts
Washers
Jacks/Plugs
Connectors
Misc Eyelet
Boards
Tools
Capacitors Custom Boards
Tubes
Valves
Pots
Knobs
Fuses/Cords Chassis
Tube
Sockets
Switches Wire
Cable


Handy Links
Tube Amp Library
Tube Amp
Schematics library
Design a custom Eyelet or
Turret Board
DIY Layout Creator
File analyzer program
DIY Layout Creator
File library
Transformer Wiring
Diagrams
Hoffmanamps
Facebook page
Hoffman Amplifiers
Discount Program


password